function DoLogin() {

	      var UsernameGet = trim(document.loginForm.UsernameGet.value);
		  var PasswordGet = trim(document.loginForm.PasswordGet.value);
		  var Verifycode = trim(document.loginForm.Verifycode.value);

          if(UsernameGet == "") {
		    alert("请输入会员登录名！");
			document.loginForm.UsernameGet.focus();
		    return false;
		  } 
		  if(PasswordGet == "") {
		    alert("请输入密码！");
			document.loginForm.PasswordGet.focus();
		    return false;
		  } 

		if (trim(document.loginForm.Verifycode.value) =="") 
		{ 
			alert("请输入验证码！"); 
			document.loginForm.Verifycode.focus(); 
			return (false); 
		} 
		var filter=/^\s*[0-9]{0,4}\s*$/;
		if (!filter.test(document.loginForm.Verifycode.value)) { 
			alert("验证码输入错误！验证码必须为数字。"); 
			document.loginForm.Verifycode.focus();
			document.loginForm.Verifycode.select();
			return false; 
		}
		document.loginForm.submit();
		
}

           function trim(inputString) {
	   
              if (typeof inputString != "string") { return inputString; }
              var retValue = inputString;
              var ch = retValue.substring(0, 1);
              while (ch == " ") { 
	          //检查字符串开始部分的空格
                  retValue = retValue.substring(1, retValue.length);
                  ch = retValue.substring(0, 1);
              }
              ch = retValue.substring(retValue.length-1, retValue.length);
              while (ch == " ") {
                 //检查字符串结束部分的空格
                 retValue = retValue.substring(0, retValue.length-1);
                 ch = retValue.substring(retValue.length-1, retValue.length);
              }
              while (retValue.indexOf("  ") != -1) { 
	         //将文字中间多个相连的空格变为一个空格
                 retValue = retValue.substring(0, retValue.indexOf("  ")) + retValue.substring(retValue.indexOf("  ")+1, retValue.length); 
              }
              return retValue;
           } 
var outString = "";

outString+="<form action='/login/login1.asp' name=\"loginForm\" id=\"loginForm\" method=\"post\" style=' float:right; margin:0px; padding:0px;'>";
outString+="	用户名：<input name='UsernameGet' tabindex=\"1\" type='text' class='input' />";
outString+="	密码：<input name='PasswordGet' tabindex=\"2\" type='password' class='input'  style=\"width:80px;\" />";
outString+="	验证码：<input name=\"Verifycode\" tabindex=\"3\" class=\"input\" style=\"width:40px;\" />"
outString+=" <img src=\"/inc/verifycode.asp?66171.17\" alt=\"验证码\" height=\"15\" align=\"absmiddle\" />";
outString+="	<a href=\"###\" onclick=\"DoLogin();\" tabindex=\"4\">登陆</a>";
outString+="    <a href=\"/login/register.asp\" target=\"_blank\" tabindex=\"5\">注册</a> 　找回密码　<a href='/service'>帮助</a>";
outString+="</form>";

document.write (outString);